louche \LOOSH\, adjective:

Of questionable taste or morality; disreputable or indecent;

dubious; shady.

You’ve got to keep yourself free of any suggestion of

louche behavior.

–Anthony West

A man in a bar, utterly average, though there is something

louche about him, something sly.

–Andrew Holleran, [1]In September, the Light Changes

Danny would be sipping a mai tai or a whiskey sour in some

louche West End club.

–Will Self, [2]Tough, Tough Toys for Tough, Tough Boys

In the louche era of the Regency she was almost a portent

of the Victorian ideal to come; in an earlier age she might

have been a Puritan.

–Mary S. Lovell, [3]Rebel Heart